Guides and exercises

• Free online logical reasoning test

  Take a free online logical reasoning test: 20 questions on logic, numbers, patterns, matrices and spatial reasoning. Instant result with explained answers.

• Number sequence exercises (with answers)

  Solved number sequence exercises: find the next number and see a step-by-step explanation. Then test your reasoning with 20 free challenges.

• Are online IQ tests reliable?

  Are online IQ tests reliable? Learn the difference between a clinical test and a recreational one, what an online result can and cannot tell you, and how to use it.

• Frequently asked questions

  Questions about the Reasoning Challenge: is it free? How long does it take? Do the questions change? Is it an IQ test? See the answers.